A 48-year-old woman from rural Maharashtra presents with postmenopausal bleeding and is diagnosed with stage IB2 cervical cancer (squamous cell carcinoma) on biopsy. Regarding the management and prognostic factors of cervical cancer, all of the following statements are TRUE EXCEPT:

Explanation

## Analysis of Stage IB Cervical Cancer Classification ### FIGO Staging for Cervical Cancer — Key Definitions **Key Point:** Stage IB cervical cancer is defined as tumor **confined to the cervix** (no parametrial invasion). Any parametrial invasion, regardless of pelvic sidewall involvement, upstages the disease to at least **Stage IIB**. - **Stage IB1:** Tumor ≤4 cm, confined to cervix - **Stage IB2:** Tumor >4 cm, confined to cervix - **Stage IIB:** Parametrial invasion WITHOUT pelvic sidewall involvement - **Stage IIIB:** Extension to pelvic sidewall ### Why Option D is the FALSE Statement (Correct Answer) Option D states: *"Parametrial invasion alone, without pelvic sidewall involvement, defines stage IB cervical cancer."* This is **FALSE**. Parametrial invasion — even without pelvic sidewall involvement — classifies the disease as **Stage IIB**, NOT Stage IB. Stage IB requires the tumor to be strictly confined to the cervix with no parametrial extension. This is a classic high-yield distinction tested in NEET PG/INI-CET. ### Verification of Other Statements | Statement | Status | Rationale | |-----------|--------|-----------| | A) CCRT with cisplatin for IB2 | **TRUE** | Standard of care per NCCN and GOG protocols; improves OS and DFS | | B) Tumor >4 cm = IB2 (not IB1) | **TRUE** | IB1 ≤4 cm; IB2 >4 cm — both confined to cervix | | C) Pelvic LN involvement → IIIC1 | **TRUE** | FIGO 2018 introduced nodal staging: pelvic nodes = IIIC1; para-aortic nodes = IIIC2 | | D) Parametrial invasion = Stage IB | **FALSE** | Parametrial invasion = Stage IIB minimum | ### High-Yield Staging Hierarchy **Mnemonic: "Parametrium = Stage II"** - IB: Confined to cervix (IB1 ≤4 cm; IB2 >4 cm) - IIA: Upper vaginal involvement, no parametrium - **IIB: Parametrial invasion (no sidewall)** ← Option D describes this, NOT IB - IIIB: Pelvic sidewall involvement **Clinical Pearl:** FIGO 2018 revised staging introduced lymph node status as a staging criterion (IIIC1/IIIC2), which was not present in FIGO 2009. For exam purposes, both versions are tested; pelvic LN involvement = IIIC1 in FIGO 2018. [cite: FIGO 2018 Cervical Cancer Staging; Berek & Novak's Gynecology, 16th ed.; Shaw's Textbook of Gynaecology]